[Solved]-Google Line Chart: drag to adjust value-Highcharts

Draggable points is not built-in into Highcharts but using the events and methods in the API it is possible to implement an editable line/column/scatter/area-chart (will only handle moving the point in y-direction so far). The following example uses mousemove, mousedown and mouseup events to handle interaction.

• At mousedown the start y value is recorded if a point is focused. The y-axis.translate method is the key here, it will translate mouse position to the data domain.
• At mousemove the focused point and tooltip is updated with the new value.
• At mouseup the point is updated and a new event drop is fired that updates the text in a status message.

Full example on jsfiddle. See also the feature request draggable points